PROBLEM TO BE SOLVED: To prevent confirmation omission of a regulation specification and proceed a confirmation work of the regulation specification efficiently.SOLUTION: A regulation specification check support method of the invention comprises: a step for receiving designation of at least one model from a user; a step for associating a model of a vehicle and a notification value used for checking whether or not, the regulation item of the vehicle satisfies the specification, by referring to the vehicle, in plural pieces of regulation data prepared for vehicles having different specifications, calculating a ratio of the same number of notification values as that of notification value corresponding to the at least one model designated by the user, out of the notification values, to the number of notification values to the same regulation item; and a step for displaying the ratio.SELECTED DRAWING: Figure 2
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